Support arm and rotary cone for modular drill bit



FIG. 1 is a perspective view of the support arm and rotary cone for modular drill bit showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a first side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a back elevational view thereof;

FIG. 6 is a second side elevational view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a support arm and rotary cone for modular drill bit, as shown. 